1 September 1991 Reconstruction of stellar image by phase retrieval based on Fourier decomposition method
Junji Ohtsubo, Yasusi Takahashi, Nobuharu Nakajima
Author Affiliations +
Abstract
A new technique is proposed to reconstruct an astronomical image using phase retrieval from exponential filtered and unfiltered images based on the Fourier series expansion method. The amplitude of the Fourier transform of the filtered image is a mixture of the information of the amplitude and phase in the Fourier space corresponding to the unfiltered image. Therefore, the phase information can be derived from the Fourier modulus ofthe filtered image based on the Fourier decomposition method described. This method is applied to stellar speckle interferometry and the successful reconstruction of a double star image is obtained.
Junji Ohtsubo, Yasusi Takahashi, and Nobuharu Nakajima "Reconstruction of stellar image by phase retrieval based on Fourier decomposition method," Optical Engineering 30(9), (1 September 1991). https://doi.org/10.1117/12.55930
Published: 1 September 1991
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Cited by 1 scholarly publication and 1 patent.
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KEYWORDS
Image filtering

Fourier transforms

Stars

Phase retrieval

Image restoration

Speckle interferometry

Image retrieval

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